Characterization and Mathematical Modeling of Chloride Diffusion in Lagos Coastal Waters.
| dc.contributor.author | Akindahunsi, A.A. | |
| dc.contributor.author | Falade, F.A. | |
| dc.contributor.author | Afolayan, J.O. | |
| dc.contributor.author | Oke, I.A. | |
| dc.date.accessioned | 2017-10-30T12:54:24Z | |
| dc.date.available | 2017-10-30T12:54:24Z | |
| dc.date.issued | 2010-06 | |
| dc.description | Staff Publication | en_US |
| dc.description.abstract | Reports and news on failure due to corrosion degradation of structures ill aggressive environments are common occurrences in literature nowadays. This paper presents deterioration pattern of concrete structures in a coastal environment and effects chloride concentration on the steel reinforcements in concrete as a way towards failure control: water samples were collected from coastal environments (Tin Can Island and Bar Beach, Lagos, Nigeria). Laboratory analyses were carried out to determine the chloride contents and values obtained for the chloride concentrations were used to prepare different concentrations of chloride solutions to be used as aggressive curing environments. The test blocks were connected in parallel to a D.C rectifier set at 10 V to accentuate the rate of corrosion. A Half-Cell potential apparatus was used to determine the corrosion potential at intervals of 4 days for a period of 2R days after the initial 28 days of curing. A simple statistical model that relates chloride concentrations to the strength of the concretes was developed and tested. The study revealed that chloride concentration has significant effect on reinforcement. Rebar in 24878.80 mg/L curing tank was the most affected by corrosion with potential reading of -16(1.50mV and the rebar in this block wax nut able to sustain any tenxiIe load. The model developed described the strength of the concretes with correlation coefficient /?2 higher than 0.950 (R2 > 0.950) | en_US |
| dc.identifier.citation | Akindahunsi, A.A. Et...al (2010) Characterization and Mathematical Modeling of Chloride Diffusion in Lagos Coastal Waters. Journal Of Failure Analysis And Prevention, vol. 10, (3), p. 169 - 177. | en_US |
| dc.identifier.issn | 1547-7029 | |
| dc.identifier.uri | http://ir.unilag.edu.ng:8080/xmlui/handle/123456789/2632 | |
| dc.language.iso | en | en_US |
| dc.publisher | Springer | en_US |
| dc.subject | Chloride concentrations· | en_US |
| dc.subject | Model correlation | en_US |
| dc.title | Characterization and Mathematical Modeling of Chloride Diffusion in Lagos Coastal Waters. | en_US |
| dc.type | Article | en_US |